A Molecular Approach
Carbohydrates are sugars and starches.
Lipids are diverse molecules that are insoluble in water
An example of a lipid
Proteins play many roles in living organisms
Nucleic Acids form DNA and RNA, the molecules of heredity.
Read The New York Times article about "The Dead Zone" from 20-Jan-98
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Last modified on: 31 January, 2000 by Dave Ussery